You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Isle Royale National Park, Passage Island. Sect. 4, T67N, R32W Remove constraint Place: Isle Royale National Park, Passage Island. Sect. 4, T67N, R32W Place Keweenaw Remove constraint Place: Keweenaw Place USA Remove constraint Place: USA Topic Dryopteridaceae Remove constraint Topic: Dryopteridaceae Type still image Remove constraint Type: still image